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12375321 = 372572293
BaseRepresentation
bin101111001101…
…010100011001
3212021201202020
4233031110121
511132002241
61121125053
7210121440
oct57152431
925251666
1012375321
116a92842
124189789
132743a9a
141901d57
151146b66
hexbcd519

12375321 has 16 divisors (see below), whose sum is σ = 18939264. Its totient is φ = 7041024.

The previous prime is 12375301. The next prime is 12375323. The reversal of 12375321 is 12357321.

It is not a de Polignac number, because 12375321 - 29 = 12374809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12375291 and 12375300.

It is not an unprimeable number, because it can be changed into a prime (12375323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (1183704).

Almost surely, 212375321 is an apocalyptic number.

It is an amenable number.

12375321 is a deficient number, since it is larger than the sum of its proper divisors (6563943).

12375321 is a wasteful number, since it uses less digits than its factorization.

12375321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its digits is 1260, while the sum is 24.

The square root of 12375321 is about 3517.8574445250. The cubic root of 12375321 is about 231.3052503972.

The spelling of 12375321 in words is "twelve million, three hundred seventy-five thousand, three hundred twenty-one".

Divisors: 1 3 7 21 257 771 1799 2293 5397 6879 16051 48153 589301 1767903 4125107 12375321